Feature Request: Window snapping

[cesco69]

https://www.youtube.com/watch?v=ZuDyNawz1e0

[maxlk96]

@cesco69

Here's how we've implemented it into our project

The initial commit:
minsulander/vatiris@54aab36

And here a fix so that the snapping does not resize windows:
minsulander/vatiris@489e554